What are your thoughts on using the Winchester primers labeled as large/magnum primers vs other brand primers that are designated as large, or magnum primers?
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Winchester LRM primer???
- Thread starter toad67
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They work fine for me with standard and magnum loads. I don’t have a chronograph, but I don’t see pressure signs.
Nemo288
Member
Just think of them as fairly hot regular or magnum primers:
The older Winchester rifle primers in the white box and plated with a silver colored metal (nickel?) were standard and magnum.
The newer blue box WLR are brass colored and labeled separately standard OR magnum in different boxes.
Never figured out if that was just marketing (same primers in both boxes) or if they went to a different compound for each.
I have my suspicions based on economics and having worked for marketeers.
The last blue boxed WLP I have are still standard/magnum.
I consider them a magnum primer.
I used all those for ball powder magnum revolver and rifle loads.
They worked fine.
Not sure how many I have left.
Currently using the Ginex LP primer for revolvers and the Federal 210M LR match for rifles now.
I don't load much ball powder in either any more.
2400 for magnum revolver, H4198-RL7 in the 444.
Neither requires a magnum primer but will go bang if that's all you have.
The WLR gives about 15-30 fps more velocity in (22") 444 loads than the Federals do so they are hotter but not dangerously so.
I don't goose the newer loads to make up the velocity loss, just consider it an additional safety margin.
I can't shoot well enough to notice any accuracy change.
They all do minute of moose or better.
Large Rifle Primer Performance by Laurie Holland | Target Shooter Magazine
"Large Rifle Primer Performance by Laurie Holland" (2015) is a comprehensive primer testing article that shows
among other things that the newer blue boxed WLR is the second hottest of 16 regular and magnum primers tested.
This supports my suspicion that they simply put the same old hot primer, minus the nickel plating, in 2 new boxes.
Notice both the WLR and Federal 210M tied for 3rd place in group size and Mr. Holland IS a benchrest shooter.
The older Winchester rifle primers in the white box and plated with a silver colored metal (nickel?) were standard and magnum.
The newer blue box WLR are brass colored and labeled separately standard OR magnum in different boxes.
Never figured out if that was just marketing (same primers in both boxes) or if they went to a different compound for each.
I have my suspicions based on economics and having worked for marketeers.
The last blue boxed WLP I have are still standard/magnum.
I consider them a magnum primer.
I used all those for ball powder magnum revolver and rifle loads.
They worked fine.
Not sure how many I have left.
Currently using the Ginex LP primer for revolvers and the Federal 210M LR match for rifles now.
I don't load much ball powder in either any more.
2400 for magnum revolver, H4198-RL7 in the 444.
Neither requires a magnum primer but will go bang if that's all you have.
The WLR gives about 15-30 fps more velocity in (22") 444 loads than the Federals do so they are hotter but not dangerously so.
I don't goose the newer loads to make up the velocity loss, just consider it an additional safety margin.
I can't shoot well enough to notice any accuracy change.
They all do minute of moose or better.
Large Rifle Primer Performance by Laurie Holland | Target Shooter Magazine
"Large Rifle Primer Performance by Laurie Holland" (2015) is a comprehensive primer testing article that shows
among other things that the newer blue boxed WLR is the second hottest of 16 regular and magnum primers tested.
This supports my suspicion that they simply put the same old hot primer, minus the nickel plating, in 2 new boxes.
Notice both the WLR and Federal 210M tied for 3rd place in group size and Mr. Holland IS a benchrest shooter.
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WLRMs are magnum. They are not like some of the other Winchester offerings where they say "for standard or magnum loads".
Can you use them in a recipe that calls for standard primers (not magnum) - sure, if you do, treat them like you would swapping magnum primers for standard in other cartridges.
I have used the WLRM in some of my 460S&W loads. They worked well. Better than any other Large Rifle Magnum primer? I could not tell.
Can you use them in a recipe that calls for standard primers (not magnum) - sure, if you do, treat them like you would swapping magnum primers for standard in other cartridges.
I have used the WLRM in some of my 460S&W loads. They worked well. Better than any other Large Rifle Magnum primer? I could not tell.
Winchester changed the labeling on their large pistol primers some time ago.
Now they don't tell whether they're standard or magnum primers.
In my test the new WLPs performed better than standard LPPs but not quit as good as the best magnum LPP I tried.
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Forum thread: WLP - Rem 2½ primers, are they magnum primers? The 44 test
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